When you subtract using large numbers, it's often better to use a written method. Column subtraction is a good written method to take one number away from another. It involves writing the smaller ...

You can find the difference between two numbers in more than one way. You can count up from the smaller number to the larger number. Or, you can count back from the larger number to the smaller number ...

The goats and their friends are having a party, but they need your help to reach the piñata. As a team, use your knowledge of thousands, hundreds, tens and ones place values to help the goats release ...